JPH0634892B2 - Adsorption property - Google Patents
Adsorption propertyInfo
- Publication number
- JPH0634892B2 JPH0634892B2 JP1079466A JP7946689A JPH0634892B2 JP H0634892 B2 JPH0634892 B2 JP H0634892B2 JP 1079466 A JP1079466 A JP 1079466A JP 7946689 A JP7946689 A JP 7946689A JP H0634892 B2 JPH0634892 B2 JP H0634892B2
- Authority
- JP
- Japan
- Prior art keywords
- tannin
- adsorptive
- cellulose
- uranium
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は放射性廃水中に含有されるイオン状及びコロイ
ド状アクチニド元素の分離除去を可能ならしめる吸着性
過膜に関する。Description: TECHNICAL FIELD The present invention relates to an adsorptive permeation membrane capable of separating and removing ionic and colloidal actinide elements contained in radioactive wastewater.
（従来の技術） 原子力施設から排出される放射性廃水にはアクチニド元
素、すなわち、ウラン，トリウム又はプルトニウムがイ
オン状またはコロイド状で存在している。このような廃
水については、可能な限り該アクチニド元素濃度の低減
化が望まれている。(Prior Art) Actinide elements, that is, uranium, thorium, and plutonium are present in ionic or colloidal form in radioactive wastewater discharged from nuclear facilities. For such waste water, it is desired to reduce the actinide element concentration as much as possible.
従来、種々の方法でアクチニド元素含有の廃水処理が行
なわれているが、その中に固定化タンニンによる該廃水
処理がある。Conventionally, treatment of wastewater containing actinide elements has been carried out by various methods, and there is treatment of the wastewater with immobilized tannin.
（発明が解決しようとする課題） 固定化タンニンの代表的な担体として、セルロース又は
アガロース等があるが、これらは繊維状又は粒状であ
り、イオン状アクチニド元素は吸着除去が可能である
が、コロイド状アクチニド元素は吸着除去できない。(Problems to be Solved by the Invention) Typical carriers for immobilized tannin include cellulose and agarose, which are fibrous or granular, and ionic actinide elements can be adsorbed and removed, but colloids. Actinide elements cannot be removed by adsorption.
本発明は、上記の従来方法の問題点を解決し、放射性廃
水中に含有するイオン状及びコロイド状アクチニド元素
の分離除去を可能ならしめる吸着性と過性との２つの
機能を有する吸着性過膜を提供することを目的とす
る。The present invention solves the above-mentioned problems of the conventional method, and has an adsorptive property having two functions, an adsorptive property and a transient property, which enables separation and removal of ionic and colloidal actinide elements contained in radioactive wastewater. The purpose is to provide a membrane.
（課題を解決するための手段） 上記目的を達成するために、本発明は放射性廃水中に含
有されるイオン状及びコロイド状アクチニド元素を分離
除去するための吸着性濾過膜であって、タンニンを固定
化した粉末状セルロースを１〜１０mmの厚さの層状体と
し、その両面をセルロース製濾過膜で押えてサンドイッ
チ状にしてなることを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention is an adsorptive filtration membrane for separating and removing ionic and colloidal actinide elements contained in radioactive wastewater, which comprises tannin It is characterized in that the immobilized powdery cellulose is formed into a layered body having a thickness of 1 to 10 mm, and both sides thereof are pressed by a cellulose filter membrane to form a sandwich.
次に、本発明のサンドイッチ状の吸着性過膜の製造方
法の１例を示すが、その中心となるタンニンを固定化し
た粉末セルロースの製造方法は次の如くである。Next, one example of the method for producing the sandwich-shaped adsorptive overmembrane of the present invention will be described. The method for producing powdery cellulose having tannin as the center thereof is as follows.
(1) 粉末状セルロースを２５％ＮａＯＨに３０分浸漬
してアルカリセルロースとする、 (2) アルカリセルロースをエピクロルヒドリンと３０
分〜１２０分接触せしめてエポキシ化セルロースとす
る、 (3) エポキシ化セルロースをヘキサメチレンジアミン
と３０分〜１２０分接触せしめてアミノヘキシルセルロ
ースとする、 (4) アミノヘキシルセルロースをエピクロルヒドリン
と３０分〜１２０分接触せしめてエポキシ化アミノヘキ
シルセルロースとする、 (5) エポキシ化アミノヘキシルセルロースをタンニン
溶液と２時間〜４時間接触せしめて本発明の中心のタン
ニンを固定化した粉末状セルロースが得られる。(1) Immerse powdered cellulose in 25% NaOH for 30 minutes to obtain alkali cellulose, (2) Replace alkali cellulose with epichlorohydrin and 30
Minute to 120 minutes to make epoxidized cellulose, (3) contact epoxidized cellulose with hexamethylenediamine for 30 to 120 minutes to make aminohexyl cellulose, (4) aminohexyl cellulose to epichlorohydrin for 30 minutes to The epoxidized aminohexyl cellulose is contacted with the tannin for 120 minutes to obtain epoxidized aminohexyl cellulose.
このタンニンを固定化した粉末状セルロースを１〜１０
mmの厚さの層状体とし、その両面を紙で押えて本発明
のサンドイッチ状の吸着性過膜とする。1 to 10 of the powdery cellulose having the tannin immobilized thereon
A layered body having a thickness of mm is prepared, and both sides thereof are pressed with paper to obtain the sandwich-like adsorptive overlayer of the present invention.
タンニンとしては加水分解型タンニンまたは縮合型タン
ニンを使用する。Hydrolyzed tannin or condensed tannin is used as the tannin.
次に、本発明の吸着性過膜の性能の一例を第１表に示
す。これを図示すれば第３図のごとくなり、吸着過が
アルカリ側だけでなく、酸側までを含めた広い範囲で向
上したことを示している。Next, Table 1 shows an example of the performance of the adsorptive overlayer of the present invention. This is illustrated in FIG. 3, which shows that the adsorption capacity is improved not only on the alkali side but also on the acid side.
（実施例） 次に、本発明を実施例により具体的に説明するが、以下
の実施例は本発明の範囲を限定するものではない。 (Examples) Next, the present invention will be specifically described with reference to examples, but the following examples do not limit the scope of the present invention.
実施例１ コロイド状ウラン化合物２００ｐｐｂ含有のウラン試験
液５００ml（ｐＨ６）を、本発明のサンドイツチ状の吸
着性過膜に通液させた。処理後の試験液におけるウラ
ン濃度は１７ｐｐｂであり、ウラン除去率は９１．５％
であつた。Example 1 500 ml (pH 6) of a uranium test solution containing 200 ppb of a colloidal uranium compound was passed through the Sangertian adsorbent permeation membrane of the present invention. The uranium concentration in the test solution after the treatment was 17 ppb, and the uranium removal rate was 91.5%.
It was.
実施例２ コロイド状ウラン化合物２００ｐｐｂ含有のウラン試験
液５００ml（ｐＨ１０）を、本発明のサンドイツチ状の
吸着性過膜に通液させた。処理後の試験液におけるウ
ラン濃度は３７．６ｐｐｂであり、ウラン除去率は８
１．２％であつた。Example 2 500 ml of a uranium test solution (pH 10) containing 200 ppb of a colloidal uranium compound was passed through the adsorbent permeation membrane of the present invention. The uranium concentration in the test liquid after the treatment was 37.6 ppb, and the uranium removal rate was 8
It was 1.2%.
実施例３ コロイド状ウラン化合物２００ｐｐｂ含有のウラン試験
液５００ml（ｐＨ４）を、本発明のサンドイツチ状の吸
着性過膜に通液させた。処理後の試験液におけるウラ
ン濃度は３７ｐｐｂでありウラン除去率は８１．５％で
あつた。Example 3 500 ml of a uranium test solution (pH 4) containing 200 ppb of a colloidal uranium compound was passed through the adsorbent permeation membrane of the present invention. The uranium concentration in the test liquid after the treatment was 37 ppb, and the uranium removal rate was 81.5%.
比較例１ コロイド状ウラン化合物２００ｐｐｂ含有のウラン試験
液５００ml（ｐＨ６）を、従来の固定化タンニンに２時
間接触させた。処理後の試験液におけるウラン濃度は１
１６ｐｐｂであり、ウラン除去率は４２％であつた。Comparative Example 1 500 ml of a uranium test solution (pH 6) containing 200 ppb of colloidal uranium compound was contacted with conventional immobilized tannin for 2 hours. The uranium concentration in the test solution after treatment is 1
It was 16 ppb and the uranium removal rate was 42%.
（発明の効果） 本発明の吸着性過膜は、上記の構成により、吸着性と
過性との２つの機能を有しているので、放射性廃水中
のイオン状アクチニド元素の吸着除去はもちろんのこ
と、従来固定化タンニン処理法ではその分離除去が困難
とされていたコロイド状アクチニド元素の分離除去も同
時に可能である。(Advantageous Effects of the Invention) Since the adsorptive permeation membrane of the present invention has two functions of adsorptive property and transient property due to the above-mentioned constitution, it is of course possible to adsorb and remove ionic actinide elements in radioactive wastewater. In fact, the colloidal actinide element, which was conventionally difficult to separate and remove by the immobilized tannin treatment method, can be separated and removed at the same time.
第１図は本発明のサンドイツチ状の吸着性過膜の一例
の縦断面図、第２図は本発明のサンドイツチ状の吸着性
過膜を二層以上の多層構造にセツトした使用方法の一
例を示す図、第３図は放射性廃水（アクチニド元素濃度
２００ｐｐｂ）を本本発明のサンドイツチ状の吸着性
過膜と従来の固定化タンニンで処理した場合の排水のｐ
Ｈ値とアクチニド元素除去率との関係を示すグラフ図で
ある。FIG. 1 is a vertical cross-sectional view of an example of a Saint-Gerchies type adsorptive supermembrane of the present invention, and FIG. 2 is an example of a method of using the Saint-Gerchies-like adsorptive supermembrane of the present invention set in a multilayer structure of two or more layers. FIG. 3 and FIG. 3 show p of wastewater when radioactive wastewater (actinide element concentration: 200 ppb) was treated with the Sangerci-like adsorptive membrane of the present invention and a conventional immobilized tannin.
It is a graph which shows the relationship between H value and actinide element removal rate.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 1/28 Ｂ Ｇ２１Ｆ 9/06 ５２１ Ｍ 9216−2Ｇ 9/12 ５０１ Ａ 9216−2Ｇ (56)参考文献 特開 昭63−278515（ＪＰ，Ａ) 特開 昭61−149078（ＪＰ，Ａ) 実開 昭63−16812（ＪＰ，Ｕ) 特公 昭57−52357（ＪＰ，Ｂ２)─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location C02F 1/28 B G21F 9/06 521 M 9216-2G 9/12 501 A 9216-2G (56) References JP-A-63-278515 (JP, A) JP-A-61-149078 (JP, A) Sekikai-Sho 63-16812 (JP, U) JP-B-57-52357 (JP, B2)
Claims (3)
ロイド状アクチニド元素を分離除去するための吸着性濾
過膜であって、 タンニンを固定化した粉末状セルロースを１〜１０mmの
厚さの層状体とし、その両面をセルロース製濾過膜で押
えてサンドイッチ状にしてなることを特徴とする吸着性
濾過膜。1. An adsorptive filtration membrane for separating and removing ionic and colloidal actinide elements contained in radioactive wastewater, wherein powdery cellulose having tannin immobilized thereon is layered to a thickness of 1 to 10 mm. An adsorptive filtration membrane, which is formed as a sandwich by pressing both sides with a cellulose filtration membrane.
記載の吸着性濾過膜。2. The adsorptive filtration membrane according to claim 1, which has a multilayer structure of two or more layers.
型タンニンである請求項(1)に記載の吸着性濾過膜。3. The adsorptive filtration membrane according to claim 1, wherein the tannin is a hydrolyzable tannin or a condensed tannin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1079466A JPH0634892B2 (en) | 1989-03-30 | 1989-03-30 | Adsorption property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1079466A JPH0634892B2 (en) | 1989-03-30 | 1989-03-30 | Adsorption property |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02258006A JPH02258006A (en) | 1990-10-18 |
| JPH0634892B2 true JPH0634892B2 (en) | 1994-05-11 |
Family
ID=13690661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1079466A Expired - Lifetime JPH0634892B2 (en) | 1989-03-30 | 1989-03-30 | Adsorption property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634892B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201002824D0 (en) | 2010-02-19 | 2010-04-07 | Temasek Polytechnic | A method of preparing a substrate for immobilization of functional substances thereon and the substrate obtained therefrom |
| JP6046399B2 (en) * | 2012-07-05 | 2016-12-14 | 一般財団法人電力中央研究所 | Method for producing uranium collector for seawater |
| JP6046574B2 (en) * | 2013-08-23 | 2016-12-21 | 日立Ｇｅニュークリア・エナジー株式会社 | Method for treating radioactive liquid waste and apparatus for treating radioactive liquid waste |
| JP6046582B2 (en) * | 2013-09-19 | 2016-12-21 | 日立Ｇｅニュークリア・エナジー株式会社 | Method for treating radioactive liquid waste and apparatus for treating radioactive liquid waste |
| JP6125960B2 (en) * | 2013-09-19 | 2017-05-10 | 日立Ｇｅニュークリア・エナジー株式会社 | Method for treating radioactive liquid waste and apparatus for treating radioactive liquid waste |
| JP6441703B2 (en) * | 2015-02-04 | 2018-12-19 | 三菱重工業株式会社 | Dissolved metal collecting material, manufacturing method of dissolved metal collecting material, dissolved metal collecting method and water treatment device |
| CN109422381B (en) * | 2017-08-31 | 2022-06-24 | 宝山钢铁股份有限公司 | Treatment process for removing soluble organic carbon and total chromium in cold rolling reverse osmosis concentrated water |
| JP7312709B2 (en) * | 2020-01-31 | 2023-07-21 | 日立Ｇｅニュークリア・エナジー株式会社 | Radioactive waste liquid treatment system and radioactive waste liquid treatment method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752357A (en) * | 1980-09-12 | 1982-03-27 | Toshiba Corp | Testing device for characteristic of cage rotor |
| JPS61149078A (en) * | 1984-12-21 | 1986-07-07 | Tanabe Seiyaku Co Ltd | Quality improvement of wine |
| JPS6316812U (en) * | 1986-07-18 | 1988-02-04 |
-
1989
- 1989-03-30 JP JP1079466A patent/JPH0634892B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02258006A (en) | 1990-10-18 |
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